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Effect of HIF-1α RNAi combined with ASP on the expression of HIF-1α, VEGF, and CD34 in subcutaneously transplanted tumors assessed using immunohistochemistry. ∗∗P < 0.01 and ∗∗∗P < 0.001 versus control group. ##P < 0.01 versus LV-shHIF1α + ASP group.
